Title :
Custom integrated front-end circuit for the CMS electromagnetic calorimeter
Author :
Walder, J.P. ; Bussa, J.M. ; Denes, P. ; Mathez, H. ; Pangaud, P.
Author_Institution :
Inst. de Phys. Nucl. de Lyon, Univ. Claude Bernard, Villeurbanne, France
Abstract :
A wide dynamic range multi-gain transimpedance amplifier custom integrated circuit has been developed for the readout of avalanche photodiode and vacuum phototriode in the CMS electromagnetic calorimeter for LHC experiment. The 92 db input dynamic range is divided into four ranges of 12 bits each in order to provide 40 MHz analog sampled data to a 12 bits ADC. This concept, which has been integrated in rad-hard full complementary bipolar technology, will be described. Experimental results obtained in lab and under irradiation will be presented along with test strategy being used for mass production
Keywords :
analogue-digital conversion; bipolar integrated circuits; mixed analogue-digital integrated circuits; nuclear electronics; particle calorimetry; preamplifiers; readout electronics; solid scintillation detectors; 40 MHz; ADC; CMS electromagnetic calorimeter; LHC experiment; analog sampled data; avalanche photodiode; custom integrated circuit; irradiation; multigain transimpedance amplifier; rad-hard full complementary bipolar technology; readout; scintillating calorimeter; vacuum phototriode; wide dynamic range; Avalanche photodiodes; Circuit noise; Collision mitigation; Dynamic range; Energy resolution; Large Hadron Collider; Leakage current; Logic; Preamplifiers; Signal resolution;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949886
